com.aliasi.tag

Interface NBestTagger<E>

Type Parameters:

E - Type of tokens in the tagging.

All Superinterfaces:

Tagger<E>

All Known Implementing Classes:

ChainCrf, HmmDecoder

public interface NBestTagger<E>
extends Tagger<E>

The NBestTagger<E> interface for objects that tag a list of objects with multiple tagged results. The number of results may be limited, which may improve efficiency for large result sets. The n-best scored taggings are returned in order through an iterator.

An optional method returns the same n-best list with scores normalized to conditional probabilities.

Since:

LingPipe3.9

Version:

3.9

Author:

Bob Carpenter

Method Summary

Modifier and Type	Method and Description
Iterator<ScoredTagging<E>>	tagNBest(List<E> tokens, int maxResults) Return an iterator over the n-best scored taggings for the specified input tokens up to a specified maximum n.
Iterator<ScoredTagging<E>>	tagNBestConditional(List<E> tokens, int maxResults) Return an iterator over the n-best scored taggings for the specified input tokens up to a specified maximum n, with scores normalized to conditional probabilities.

Methods inherited from interface com.aliasi.tag.Tagger

tag

Method Detail

tagNBest

Iterator<ScoredTagging<E>> tagNBest(List<E> tokens,
                                    int maxResults)

Return an iterator over the n-best scored taggings for the specified input tokens up to a specified maximum n.

Parameters:

tokens - Input tokens to tag.

maxResults - Maximum number of results to return.

Returns:

Iterator over the n-best scored taggings for the specified tokens.

tagNBestConditional

Iterator<ScoredTagging<E>> tagNBestConditional(List<E> tokens,
                                               int maxResults)

Return an iterator over the n-best scored taggings for the specified input tokens up to a specified maximum n, with scores normalized to conditional probabilities.

Optional operation.

Parameters:

tokens - Input tokens to tag.

maxResults - Maximum number of results to return.

Returns:

Iterator over the n-best scored taggings for the specified tokens.

Throws:

UnsupportedOperationException - If this method is not supported.